JP6476103B2 - Container with dropper - Google Patents

Description

  The present invention relates to a container with a dropper suitable for dispensing an appropriate amount of content (liquid material) filled in a container body using a dropper.

  A container with a dropper is a container useful for taking out a small amount of contents filled in a container body, and is often used as a container containing a medicine or the like.

  In taking out the contents filled in the container main body in such a container, the main body of the container is guided through a nozzle connected to the tail by inducing squeezing of the tail part (dome-shaped or bellows-shaped) of the dropper and restoring to the initial shape. It is common to take a use form in which the contents inside are sucked up and the contents related to the suction are dropped at a desired location. For example, Patent Document 1 is referred to as a prior art document relating to this point.

No. 07-16624

  Specifically, the container with a dropper disclosed in the above document is a container body that stands up the mouth and neck, and the upper part of the elongated tube that hangs down to the bottom of the container body protrudes upward from the mouth and neck. A bag-like elastic cap mouth part having a lower surface opening is fitted to the outer surface, a dropper body having the lower end surface of the mouth part placed on the upper end surface of the mouth neck part, and the upper end part of the first peripheral wall to the outer surface of the mouth part. An operating member that detachably fits the first peripheral wall to the outer surface of the mouth-and-neck portion and erected a first plate-shaped portion from the upper end of the front portion of the first peripheral wall via a hinge; A cover member in which the second peripheral wall is fitted to the outer surface of the first peripheral wall of the member, and the second plate-like portion is erected by interposing the elastic cap between the upper end of the second peripheral wall and the first plate-like portion. When the first plate-like part is pushed backward, the elastic cap can be squeezed. Lever, it has been considered can be reliably squeeze the elastic cap, which is a problem in dropper container with.

  By the way, in this type of conventional container, when the contents are sucked up, since the dropper nozzle (the elongated tube as referred to in the prior art document 1) is immersed in the contents, the contents adhere to the outer peripheral surface. Inevitably, when the contents are dropped, there is a problem that the contents attached to the outer peripheral surface of the nozzle drips, and there is still room for improvement in this regard.

  The subject of this invention exists in the place which proposes the container with a dropper which can avoid adhesion of the content to the nozzle outer surface which causes the content to fall down.

  The present invention has a tail that can be squeezed and deformed, and by sucking the contents filled in the container body through the nozzle connected to the tail by inducing the squeezing of the tail and restoring to the initial shape The container is provided with a dropper, which is suspended and held by the container body at the mouth and neck of the container body, and the nozzle is inserted through the upper open end of the container body and the container body through the lower open end of the container body. An inner plug that sucks up the contents with the nozzle is provided, and the nozzle surrounds the tip of the nozzle over the entire circumference and is slidably in contact with the inner peripheral wall of the inner plug while maintaining a liquid-tight state. And at least one recess for temporarily releasing the liquid-tight state during sliding of the elastic seal portion. It is a container.

In a container with a dropper composed of the above configuration,
1) The recess is a longitudinal groove extending from a central portion in the height direction of the inner plug toward the lower open end.
2) The nozzle is in a mounting completion posture in which the nozzle is inserted into the inner plug most deeply, and its end surface is in contact with the bottom wall seat of the inner plug and is kept in a sealed state to communicate with the lower open end. Having a tip to
3) The elastic seal part is composed of an annular band integrally connected to the outer peripheral wall of the nozzle, and the annular band projects outward at the center, and the projecting part is formed on the inner peripheral wall of the inner plug. Having a curved cross-sectional shape (returned shape) for contacting and holding in a liquid-tight state;
4) The inner plug has a suction pipe that reaches the corner of the bottom wall of the container body through the lower opening end,
Is desirable as a specific means for solving the problem.

  According to the container with a dropper of the present invention, the container body is suspended and held in the neck portion of the container body, and the nozzle is inserted through the upper open end, while the contents in the container body are passed through the lower open end. An inner plug to be sucked up by the nozzle is provided, and an elastic seal portion is provided on the nozzle so as to surround the tip end portion over the entire circumference and to slidably contact the inner peripheral wall of the inner plug while maintaining a liquid-tight state. Therefore, when the contents in the container body are sucked up, the contents do not adhere to the outer peripheral surface of the nozzle.

  Further, according to the present invention, the inner peripheral wall of the inner plug is provided with at least one recess for temporarily releasing the liquid-tight state during sliding of the elastic seal portion, so that when the dropper nozzle is inserted or When the nozzle is pulled out, the pressure in the container body does not rise excessively or becomes negative pressure (external air replacement).

  Further, according to the present invention, the recess is a vertical groove extending from the central portion in the height direction of the inner plug toward the lower side (lower open end side), thereby smoothly inserting and extracting the dropper nozzle. Is possible.

  According to the present invention, the nozzle is provided with a tip portion whose end face abuts against the bottom wall of the inner plug in a fully inserted position inserted into the inner plug, and that is in a sealed state and communicates with the lower open end. As a result, the contents filled in the container body can be efficiently sucked up (the remaining amount of contents can be reduced as much as possible).

  Further, according to the present invention, the elastic seal portion is formed of an annular band integrally connected to the outer peripheral wall of the nozzle, and the central portion projects outward, and the projecting portion is the inner plug. By incurring a curved cross-sectional shape that is kept in a liquid-tight state by abutting against the inner peripheral wall, the intrusion of the contents between the nozzle and the inner plug can be surely avoided.

  Further, according to the present invention, the remaining amount of the contents filled in the container main body can be reduced as much as possible by providing the inner plug with a suction pipe that reaches the bottom wall corner of the container main body through the lower opening end. In addition, the length of the dropper nozzle can be shortened (downsizing of the dropper).

It is the figure which showed typically embodiment of the container with a dropper according to this invention. (A)-(f) is the figure which showed the use condition of the container with a dropper shown in FIG. 1 in steps. (A)-(d) is the figure which showed the use condition of the container with a dropper shown in FIG. 1 in steps.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a diagram schematically showing an embodiment of a container with a dropper according to the present invention.

  The code | symbol 1 in FIG. 1 is a container main body filled with the contents. The container body 1 has a mouth-and-neck part 1a at the top, a shoulder part 1b connected to the mouth-and-neck part 1a, a trunk part 1c connected to the shoulder part 1b, and a bottom part 1d connected to the trunk part 1c. Although an example of a bottle shape forming the filling space is shown, the shape of the container body 1 is not limited to the illustrated one. The container body 1 is formed of synthetic resin such as polyethylene terephthalate or polypropylene, glass, or the like.

  Reference numeral 2 denotes a dropper that is detachably attached to the mouth-neck portion 1a of the container body 1. The dropper 2 can be squeezed by applying force with fingers or the like, and can be restored to its initial shape by releasing the force. The shape is not limited.), And the lower end open portion of the tail portion 2a is connected to the upper end portion in, for example, a fitting form, and the contents filled in the container main body 1 are sucked up by compression of the tail portion 2a and restoration to the initial shape. At the same time, the cylindrical nozzle 2b for dropping the contents to be sucked up and the base end of the tail portion 2a are integrally provided, and the dropper 2 is attached by screwing to the outer peripheral wall of the neck portion 1a of the container body 1 And a base cap 2c that maintains the container body 1 in a sealed state. As the base cap 2c, a base cap that can be detachably attached to the neck portion 1a of the container body 1 by undercut fitting can be applied.

The nozzle 2b, the shaft portion 2b ₁ constituting a main body portion, leading to the shaft portion 2b _1, the inner plug in the most deeply inserted completely mounted posture (described later), a bottom wall seat of its end face inside plug And a cylindrical tip portion 2b ₂ that maintains a sealed state and communicates with the lower open end of the inner plug. In this case, the tip portion 2b ₂ is a shaft portion of the nozzle 2b. A small diameter cylinder smaller than the diameter of 2b ₁ can be applied.

  The tail part 2a and the nozzle 2b of the dropper 2 can be molded from a synthetic resin such as linear low density polyethylene (LLDPE), and in particular, the tail part 2a is reliably squeezed and restored to its initial shape. In order to make it possible, an elastic member such as rubber may be partially applied by, for example, insert molding or another member.

Reference numeral 3 denotes a cylindrical inner plug that is suspended and held in the mouth-and-neck portion 1 a of the container body 1. The inner plug 3 can be molded from a synthetic resin such as polypropylene (PP) and has an internal space into which the nozzle 2b of the dropper 2 can be inserted through the upper open end 3a. It has a function as a guide / cylinder for sucking up the contents in the container main body 1 by the nozzle 2b through the lower open end 3c of the provided small diameter tube 3b. The bottom wall of the inner plug 3, the end face of the distal end portion 2b ₂ of the nozzle 2b is in contact with the bottom wall seat 3d for holding the sealing state is formed.

  In order to suspend and hold the inner plug 3 on the neck portion 1 a of the container body 1, for example, a flange portion 3 e is provided at the upper open end 3 a and this flange portion 3 e is placed on the upper end surface of the mouth neck portion 1 a of the container body 1. The upper end portion (large diameter portion) 3f of the inner plug 3 may be fitted to the inner peripheral wall of the mouth neck portion 1a. In addition, the hanging structure of the inner plug 3 can be variously changed and is not limited to the illustrated one.

Further, 4 is a sealing elastic member integrally provided on the outer surface of the shaft portion 2b ₁ of the nozzle 2b at the base of the tip portion 2b ₂ of the nozzle 2b. The elastic seal portion 4 is in contact with the inner peripheral wall of the inner plug 3 in a liquid-tight state, and is slidable following the movement of the nozzle 2b (moving by extraction or insertion of a dropper). .

As the elastic seal portion 4, specifically, an annular band of cantilevered type surrounding the entire periphery of the whole or a portion of the axial direction of the distal end portion 2b ₂ of the nozzle 2b at a gap is applied.

  As the cross-sectional shape of the elastic seal portion 4, the central portion facing the inner peripheral wall of the inner plug 3 projects outward, and the projecting portion abuts against the inner peripheral wall of the inner plug 3 to keep it in a liquid-tight state. It is particularly desirable to have a curved cross-sectional shape (a barrel-shaped return shape with an R).

  The elastic seal portion 4 can be molded from a synthetic resin such as LLDPE that can be elastically deformed. However, in order to realize a reliable seal, an elastic member such as rubber is partially formed by insert molding or another member. It is also possible to apply it.

  Reference numeral 5 denotes a recess that is provided on the inner peripheral wall of the inner plug 3 and temporarily releases the liquid-tight state while the elastic seal portion 4 slides.

  The recess 5 has a function of releasing excessive pressure and negative pressure (replacement with outside air) in the container body 1. By providing this recess 5, when the nozzle 1 b is inserted into the inner space of the inner plug 3, the inside of the container body 1 is prevented from being excessively pressurized, while the nozzle 1 b is pulled out from the inner plug 3. Sometimes, the inside of the container body 1 can be prevented from becoming extremely negative pressure. As the recess 5, a vertical groove extending from the central portion in the height direction of the inner plug 3 toward the lower open end 3 c side can be applied, and a recess or a lateral groove that circulates on the inner peripheral wall of the inner plug 3 can be used. It can also be applied and is not limited to a longitudinal groove.

The formation position of the recess 5 is the mounting completion posture (the tip 2b _{2 of the} nozzle 2b) in which the nozzle 2b is inserted deepest into the inner plug 3 from the viewpoint of reliably avoiding the adhesion of the contents to the outer peripheral surface of the nozzle 2a. The end surface of the inner plug 3 is in contact with the bottom wall seat 3d of the inner plug 3 and communicates with the lower open end 3c of the inner plug 3. The elastic seal portion 4 is in contact with the inner peripheral wall of the inner plug 3 and is liquid-tight. It is preferable that the lower end of the recess 5 be positioned at the upper portion thereof so that the state can be maintained.

  For example, in the case where one longitudinal groove is provided as the recess 5 and the content has a viscosity equivalent to that of water, the width of the longitudinal groove is about 0.1 to 1.0 mm, and the length is about The length of the inner plug 3 is about 40 to 60%, and the depth is preferably about 0.1 to 0.3 mm. However, the above range can be changed as appropriate depending on the viscosity of the contents and the number of recesses 5 (the number of longitudinal grooves).

  Further, reference numeral 6 is a suction pipe whose one end is set to a length that fits into the small diameter pipe 3 b of the inner plug 3 and the other end reaches the corner of the bottom wall of the container body 1. Since the contents in the container body 1 are sucked up by the nozzle 2b through the suction pipe 6, the remaining amount of the contents can be reduced. In addition, although the suction tube 6 is set to an example that is set to a length that reaches the bottom wall corner of the container body 1, it is only necessary to be able to reduce the remaining amount of the contents, and is not limited to the illustrated one. Never happen.

  2 (a) to 2 (f) are diagrams showing step by step how the containers are used with the dropper-equipped containers having the above-described configuration.

  In order to take out the contents in the container body 1 with the dropper 2, first, the tail 2a of the dropper 2 is squeezed while the dropper 2 is attached to the container body 1, that is, as shown in FIG. At the same time, the force applied to the squeezing is removed to restore the tail 2a to the initial shape. As a result, the content in the container body 1 is sucked up by the nozzle 2b through the suction pipe 6 connected to the small diameter pipe 3b of the inner plug 3.

  Then, as shown in FIGS. 2 (b) to 2 (e), the dropper 2 is removed from the container body 1 (pulled up), and the tail 2a is squeezed again at a predetermined position as shown in FIG. 2 (f). do it.

  In the container with a dropper according to the present invention, when the elastic seal portion 4 passes through the recess 5, the negative pressure in the container body 1 is released, and the contents in the container body 1 as shown in FIG. Is not lifted into the internal space of the inner plug 3. On the other hand, the inside of the container body 1 is negatively pressurized until the elastic seal portion 4 passes through the recess 5 and comes out of the inner space of the inner plug 3, and as shown in FIG. The content of the inside is pulled up into the inner space of the inner plug 3 and the level of the liquid level changes. However, since the gap between the nozzle 2 b and the inner plug 3 is held in a liquid-tight state by the elastic seal portion 4. In the meantime, the intrusion of the contents is prevented, and the adhesion of the contents to the outer surface of the dropper 2 that causes the contents to fall off is unlikely to occur.

  FIGS. 3A to 3D are diagrams showing the state in which the dropper 2 in which the contents have been dropped is inserted into the inner space of the inner plug 3 in a stepwise manner.

Before the dropper 2 is inserted into the inner space of the inner plug 3, as shown in FIG. 3A, the liquid level of the contents filled in the container body 1 and the contents existing in the inner space of the inner plug 3. The liquid level of the object is almost the same. When the nozzle 2b of the dropper 2 is inserted into the inner space of the inner plug 3 and pushed toward the lower open end 3c, the contents in the inner plug 3 are pressurized, and the lower open end 3c as shown in FIG. 3 (b). And is pushed into the container body 1. Then, the pressure is released while the elastic seal portion 4 passes through the recess 5, and the contents in the container body 1 enter the inner space of the inner plug 3 again as shown in FIG. However, when the end surface of the tip 2b ₂ of the nozzle 2b comes into contact with the bottom wall seat 3d of the inner plug 3 and is held in a sealed state, as shown in FIG. Most of the contents present in the pipe are pushed back to the small-diameter pipe 3b of the inner plug 3. The container with the dropper of the present invention is in a liquid-tight state between the nozzle 2b and the inner plug 3 by the elastic seal portion 4 even when the nozzle 2b of the dropper 2 is inserted into the inner space of the inner plug 3. The contents are not easily intruded in the meantime, and therefore, the adhesion of the contents to the outer peripheral surface of the nozzle 2b, which causes the contents to sag, is suppressed.

  The container with a dropper according to the present invention can prevent the contents from adhering to the outer peripheral surface of the nozzle 2b, and can shorten the dropper by providing the inner plug 3 connected to the suction pipe 6. There is also an advantage that the remaining amount of the contents can be reduced as much as possible while reducing the size.

  According to the present invention, it is possible to prevent the contents filled in the container body from adhering to the outer peripheral surface of the dropper nozzle. In addition, according to the present invention, it is possible to reduce the size of the dropper and reduce the remaining amount of contents.

DESCRIPTION OF SYMBOLS 1 Container body 1a Mouth neck part 1b Shoulder part 1c Trunk part 1d Bottom part 2 Dropper 2a Tail part 2b Nozzle 2c Base cap 3 Inner plug 3a Upper open end 3b Small diameter pipe 3c Lower open end 3d Bottom wall seat part 3e Flange part 3f Upper end part 4 Elasticity Seal 5 Recess 6 Suction tube

Claims (5)

A dropper having a tail that can be squeezed and deformed, and sucking up the contents filled in the container body through a nozzle connected to the tail by inducing compression of the tail and restoration to the initial shape, and dropping the contents to be sucked up A container comprising
The container body is provided with an inner plug that is suspended and held at the mouth and neck of the container body, and the nozzle is inserted through the upper open end of the container body, and the contents in the container body are sucked up by the nozzle through the lower open end of the container body. ,
The nozzle has an elastic seal portion that surrounds the entire tip thereof and slidably contacts the inner peripheral wall of the inner plug while maintaining a liquid-tight state,
A container with a dropper, wherein an inner peripheral wall of the inner plug is provided with at least one recess for temporarily releasing a liquid-tight state during sliding of the elastic seal portion.   2. The container with a dropper according to claim 1, wherein the recess is a longitudinal groove extending from a central portion in the height direction of the inner plug toward the lower open end.   The nozzle has a mounting completion posture in which the nozzle is inserted into the inner plug most deeply, and a tip end of which is in contact with the bottom wall seat portion of the inner plug, is held in a sealed state, and communicates with the lower open end The container with a dropper according to claim 1 or 2, wherein the container has a portion. The elastic seal portion comprises an annular band integrally connected to the outer peripheral wall of the nozzle,
The annular band has a curved cross-sectional shape in which a central portion projects outward and the projecting portion is brought into contact with an inner peripheral wall of the inner plug and held in a liquid-tight state. The container with a dropper described in any one of 1 to 3.   The container with a dropper according to any one of claims 1 to 4, wherein the inner plug has a suction pipe that reaches a bottom wall corner portion of the container body through a lower opening end.

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